Finding the Third Proportional to 381,186 and 828,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   381,186 : 828,022.50 = 828,022.50 : x
2. Step 2: Convert to fraction form
   381,186/828,022.50 = 828,022.50/x
3. Step 3: Cross multiply
   381,186x = 828,022.50 × 828,022.50
4. Step 4: Simplify right side
   381,186x = 685,621,260,506.25
5. Step 5: Solve for x
   x = 685,621,260,506.25/381,186
6. Step 6: Final answer
   x = 1,798,652.79